Central Nervous System Toxoplasmosis in Relapsed Hodgkin’s Lymphoma: A Case Report

The possible association between Toxoplasma gondii infection and paediatric haematological malignancies in a group of patients and control subjects was evaluated in the present study. We performed an age-, gender- and residence frequency-matched case-control study of 101 blood cancer patients under 18 years of age, all of which were treated in Amirkola Pediatric Hospital. One hundred and thirty-eight control samples were gathered from the outpatient clinic in the hospital. All cases and controls were tested for the presence of anti-Toxoplasma IgG antibodies and then IgG-positive subjects were evaluated for IgM antibodies by enzyme-linked immunoassays. Anti-T. gondii IgG antibodies were found in 37 (36.6%) of the cases and 12 (8.7%) subjects in the control group (odds ratio 6.07, 95% confidence interval 2.963-12.437, P < 0.0001). The median and interquartile range (IQR) of IgG titre from case group (7.7 (IQR 0.25-13.5)) was higher than the control (0.2 (IQR 0.1-0.5)) (P < 0.0001). The frequency of anti-T. gondii antibodies (IgG) in lymphoblastic leukaemia (acute lymphoblastic leukaemia), Hodgkin's lymphoma and T-cell lymphoma were 33 (31.9%), 3 (50%) and 1(100%), respectively. Anti-T. gondii IgM was not detected in the IgG-positive patients in case group. In the case subjects, no significant difference was seen in the positive rates of T. gondii infection between genders (37.3% in male; 35.7% in female; P = 0.52) and ages groups (P = 0.31). This study demonstrated that T. gondii infection is prevalent in children with blood cancer. It also showed that toxoplasmosis may possibly be linked with an increased risk of childhood haematologic malignancies. Furthermore, these results may be helpful in research on blood neoplasia aetiology.

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Epidemiology and Etiology of Community-Acquired CNS Infections in Iran: A Narrative Review

Sheybani,

Haddad,

Shirazinia

2023

Future Neurol.

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CNS infections are associated with significant morbidity and mortality. The epidemiology of CNS infections shows striking differences in geographic regions. We reviewed the literature on clinico-epidemiological features of community-acquired CNS infections in Iran. Our review highlighted that the causes of CNS infections in Iran are diverse but information regarding the epidemiology and precise estimates of the burden of disease are lacking for most neuroinfections. Enteroviruses, S. pneumoniae, and Klebsiella species are the most commonly reported causes of viral, bacterial, and neonatal meningitis, respectively, whereas neurotuberculosis and neurobrucellosis place a huge burden. Improving the national surveillance system and implementing a nationwide data registry system for CNS infections are necessary to provide practically useful information regarding the microbial spectrum and the burden of CNS infections to suggest optimal preventive, diagnostic, and therapeutic strategies.

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Central Nervous System Toxoplasmosis in Relapsed Hodgkin’s Lymphoma: A Case Report

Cited by 3 publications

References 17 publications

Guidelines for the management of Toxoplasma gondii infection and disease in patients with haematological malignancies and after haematopoietic stem-cell transplantation: guidelines from the 9th European Conference on Infections in Leukaemia, 2022

Guidelines for the management of Toxoplasma gondii infection and disease in patients with haematological malignancies and after haematopoietic stem-cell transplantation: guidelines from the 9th European Conference on Infections in Leukaemia, 2022

Association between Toxoplasma gondii exposure and paediatrics haematological malignancies: a case–control study

Epidemiology and Etiology of Community-Acquired CNS Infections in Iran: A Narrative Review

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